Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
As September begins, there is a minor decrease in the average high-temperature, softly falling from a moderately hot 26°C (78.8°F) in August to a pleasant 21.3°C (70.3°F). In September, the nighttime temperature in Saint-Martin-de-Castillon, France, lowers to an average of 11°C (51.8°F).Humidity
In September, the average relative humidity in Saint-Martin-de-Castillon, France, is 73%.Rainfall
In Saint-Martin-de-Castillon, in September, during 12 rainfall days, 65mm (2.56") of precipitation is typically accumulated. In Saint-Martin-de-Castillon, during the entire year, the rain falls for 146.1 days and collects up to 886mm (34.88") of precipitation.Snowfall
June through September are months without snowfall in Saint-Martin-de-Castillon, France.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 07:01 and sunset at 20:13. On the last day of September, sunrise is at 07:34 and sunset at 19:20 CEST.
Sunshine
In September, the average sunshine in Saint-Martin-de-Castillon is 9h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 4 in September translates into this advice:
Undertake protective steps - Preventing sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Saint-Martin-de-Castillon?
What is the average humidity in September in Saint-Martin-de-Castillon?
How much does it rain in Saint-Martin-de-Castillon in September?
When it does not snow in Saint-Martin-de-Castillon?
Does it snow in Saint-Martin-de-Castillon in September?
What is the average length of the day in September in Saint-Martin-de-Castillon?
When are sunrise and sunset in September in Saint-Martin-de-Castillon?
How many hours of sunshine does Saint-Martin-de-Castillon have in September?
What is the UV index reading in September in Saint-Martin-de-Castillon?
Average temperature in September
Saint-Martin-de-Castillon, France
- Average high temperature in September: 21.3°C
The warmest month (with the highest average high temperature) is July (26.3°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is August (14.1°C).
The coldest month (with the lowest average low temperature) is February (-0.8°C).
Average pressure in September
Saint-Martin-de-Castillon, France
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is December (1019.8mbar).
The month with the lowest atmospheric pressure is April (1014.6mbar).
Average wind speed in September
Saint-Martin-de-Castillon, France
- Average wind speed in September: 9.9km/h
The windiest months (with the highest average wind speed) are February and March (12.6km/h).
The calmest month (with the lowest average wind speed) is September (9.9km/h).
Average humidity in September
Saint-Martin-de-Castillon, France
- Average humidity in September: 73%
The months with the highest relative humidity are November and December (83%).
The months with the lowest relative humidity are July and August (65%).
Average rainfall in September
Saint-Martin-de-Castillon, France
- Average rainfall in September: 65mm
The wettest month (with the highest rainfall) is November (130mm).
The driest month (with the least rainfall) is January (48mm).
Average rainfall days in September
Saint-Martin-de-Castillon, France
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is April (16.2 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in September
Saint-Martin-de-Castillon, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (191mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Saint-Martin-de-Castillon, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint-Martin-de-Castillon, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is November (Average sunshine: 5h and 18min).
Average sunshine days in September
Saint-Martin-de-Castillon, France
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is August (18.6 days).
The month with the least sunshine days is May (12.6 days).
Average UV index in September
Saint-Martin-de-Castillon, France
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Saint-Martin-de-Castillon, France
- Average cloud cover in September: 28
The month with the most cloud cover is November (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in September
Saint-Martin-de-Castillon, France
- Average visibility in September: 9km
The months with the highest visibility are July and August (10km).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (9km).
